calibercontractingservices.com

Valid Email Server
Domain Lookup › calibercontractingservices.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
calibercontractingservices.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 05:52:07 UTC · ↺ Refresh

MX Hostnames

  • calibercontractingservices-com.mail.protection.outlook.com

MX Priorities

  • calibercontractingservices-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 74.208.236.132 ↩ 74-208-236-132.elastic-ssl.ui-r.com
  • 2607:f1c0:100f:f000::200 ↩ 2607-f1c0-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com

SOA Record

Raw SOA ns1045.ui-dns.com hostmaster.1und1.com 2017060117 28800 7200 604800 600
Primary NS (mname)
ns1045.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060117
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1045.ui-dns.biz
ns1045.ui-dns.org
ns1045.ui-dns.com
ns1045.ui-dns.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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